That map gives Romney both Florida and Ohio, which account for a
crucial 47 electoral votes that Romney is hoping to swing back
into the Republican column.

But even if he wins Ohio and Florida, Romney would
have pick up a at least a couple more swing states in which he's
currently trailing — here, he gets victories in Colorado, Iowa
and New Hampshire, which barely push him over the edge.

That's why losing even one of Ohio and Florida would make
Romney's path so difficult. Since Romney is trailing by an
astounding 8 points in Ohio, let's look at where he would stand
without the Buckeye State:

What would happen if Romney were to lose both Florida and Ohio?
He would have to flip Pennsylvania and Michigan, two states
in which the RCP average is at least 8 points.
Or he'd have to swing one of those states and Nevada, which leans
3.4 points toward Obama.